19. My father used to be very strict and severe, but he has ____ in recent years.
(A) nudged
(B) jeopardized
(C) muffled
(D) mellowed
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統計: A(4), B(9), C(9), D(43), E(0) #1566313
統計: A(4), B(9), C(9), D(43), E(0) #1566313